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An electromagnetic wave has an electric field given by E (y,t)=[ 3.85 x 105 V/m cos(ky-(1.160 x 1013 rad/s )t)]khat.
A) Determine in which direction is the wave traveling?
B) Determine what is the wavelength of the wave?
A plank 2.00 cm thick and 16.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below, find the shear modulus of the wood
A sprinter can accelerate with constant acceleration for 4.00s before reaching top speed. He can run the 100-meter dash in 10 s.
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a pulley having a rotational inertia of 1.0x104 gcm2 and a radius of 10 cm is acted upon by a force applied
you want to plug in a light bulb p100w an electric heater 1500 w your laptop 65w and a hair dryer 1200 w into the same
The electric potential energy stored in the capacitor of a defibrillator is 37J, and the capacitance is 120μF. What is the potential difference across the capacitor plates?
An electric turntable 0.750 meter in diameter is rotating about a fixed axis with an initial angular velocity of 0.250 rev/s, Calculate the tangential speed of a point on the rim of the turntable at t= 0.200 sec
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two kg of ammonia are compressed adiabatically from a saturated vapor state at 20 c. the dead state is p0 1 bar t0
The last exhibit had a cylinder of mass 1.2 kg and radius .2 meters rolling down an incline with a linear velocity of 2 m/s. How much torque must be exerted by the friction force
a 30 kg child on a sled slides down a frictionless slope angled at 15 degrees with respect to the horizontal. what is the magnitude of the wind force, F, such that the acceleration of the child is 1 m/s^2
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